Abstract：
BACKGROUND: To describe the outcomes of retropupillary iris fixation of an iris claw Artisan Myopia intraocular lens (IOL), and to review literature on retropupillary iris fixation of iris claw models for myopia for the correction of aphakia and IOL dislocation in eyes with extremely high myopia.
METHODS: Single-center, retrospective case series. Three patients (three eyes) with pathological myopia underwent retropupillary iris fixation of the iris claw Artisan Myopia model 204 for the correction of aphakia and IOL dislocation. After IOL power calculation, we found that the Artisan Aphakia IOL was not available for these patients. One patient had a history of previous extracapsular cataract extraction and two patients exhibited IOL-bag complex dislocation. The target lens power was calculated using ultrasound biometry and the Sanders-Retzlaff-Kraff theoretical and T2 formulae, with an A-constant of 103.8. All surgeries were performed by a single surgeon. Visual outcomes were assessed at 12-48 months after surgery.
RESULTS: The mean axial length was 34.33 ± 0.21 mm. The power of the implanted Artisan IOLs ranged between - 4.00 and - 3.00 diopter. The corrected distance visual acuity, measured in logarithm of the minimum angle of resolution units, improved after surgery in all eyes, from 0.60 ± 0.36 logMAR before surgery to 0.40 ± 0.43 logMAR after surgery at 12 months postoperatively and remained stationary thereafter. There were no postoperative complications.
CONCLUSIONS: Retropupillary iris fixation of Artisan Myopia IOLs may be a safe and effective surgical treatment option for the correction of aphakia and IOL dislocation in patients with extremely high myopia.
METHODS: Single-center, retrospective case series. Three patients (three eyes) with pathological myopia underwent retropupillary iris fixation of the iris claw Artisan Myopia model 204 for the correction of aphakia and IOL dislocation. After IOL power calculation, we found that the Artisan Aphakia IOL was not available for these patients. One patient had a history of previous extracapsular cataract extraction and two patients exhibited IOL-bag complex dislocation. The target lens power was calculated using ultrasound biometry and the Sanders-Retzlaff-Kraff theoretical and T2 formulae, with an A-constant of 103.8. All surgeries were performed by a single surgeon. Visual outcomes were assessed at 12-48 months after surgery.
RESULTS: The mean axial length was 34.33 ± 0.21 mm. The power of the implanted Artisan IOLs ranged between - 4.00 and - 3.00 diopter. The corrected distance visual acuity, measured in logarithm of the minimum angle of resolution units, improved after surgery in all eyes, from 0.60 ± 0.36 logMAR before surgery to 0.40 ± 0.43 logMAR after surgery at 12 months postoperatively and remained stationary thereafter. There were no postoperative complications.
CONCLUSIONS: Retropupillary iris fixation of Artisan Myopia IOLs may be a safe and effective surgical treatment option for the correction of aphakia and IOL dislocation in patients with extremely high myopia.
摘要：
背景：为了描述虹膜爪Artisan近视人工晶状体（IOL）的瞳孔后虹膜固定的结果，并回顾虹膜爪近视模型的瞳孔后虹膜固定术，以矫正高度近视的无晶状体眼和IOL脱位的文献。
方法：单中心，回顾性病例系列。3例(3只眼)病理性近视患者行虹膜爪Artisan近视模型204的瞳孔后虹膜固定术矫正无晶状体眼和IOL脱位。IOL功率计算后,我们发现这些患者无法使用Artisan无晶状体IOL.一名患者有先前的囊外白内障摘除术史，两名患者出现IOL袋复合脱位。使用超声生物统计学和Sanders-Retzlaff-Kraff理论和T2公式计算目标透镜屈光力，A常数为103.8。所有手术均由一名外科医生进行。在手术后12-48个月评估视觉结果。
结果：平均轴向长度为34.33±0.21mm。植入的ArtisanIOL的功率范围在-4.00和-3.00屈光度之间。校正后的远距视力，以分辨率单位的最小角度的对数测量，手术后改善了所有的眼睛，术后12个月从手术前的0.60±0.36logMAR到手术后的0.40±0.43logMAR，此后保持静止。术后无并发症发生。
结论：Artisan近视眼虹膜后固定人工晶体可能是矫正高度近视患者无晶状体眼和人工晶状体脱位的一种安全有效的手术治疗选择。
方法：单中心，回顾性病例系列。3例(3只眼)病理性近视患者行虹膜爪Artisan近视模型204的瞳孔后虹膜固定术矫正无晶状体眼和IOL脱位。IOL功率计算后,我们发现这些患者无法使用Artisan无晶状体IOL.一名患者有先前的囊外白内障摘除术史，两名患者出现IOL袋复合脱位。使用超声生物统计学和Sanders-Retzlaff-Kraff理论和T2公式计算目标透镜屈光力，A常数为103.8。所有手术均由一名外科医生进行。在手术后12-48个月评估视觉结果。
结果：平均轴向长度为34.33±0.21mm。植入的ArtisanIOL的功率范围在-4.00和-3.00屈光度之间。校正后的远距视力，以分辨率单位的最小角度的对数测量，手术后改善了所有的眼睛，术后12个月从手术前的0.60±0.36logMAR到手术后的0.40±0.43logMAR，此后保持静止。术后无并发症发生。
结论：Artisan近视眼虹膜后固定人工晶体可能是矫正高度近视患者无晶状体眼和人工晶状体脱位的一种安全有效的手术治疗选择。
